2019 DIXON ROAD DGR PROJECTshall be clearly marked “2019 Dixon Road DGR Proposal for Letting of...

PROJECT MANUAL

2019 DIXON ROAD DGR PROJECT

POLK TOWNSHIP

JEFFERSON COUNTY, PENNSYLVANIA

June 2019

Project # Dixon 486-2019

INVITATION TO BID

Sealed Proposals for the 2019 Dixon Road DGR Project, will be received by Polk Township,

Jefferson County, PA until 4:00 p.m. prevailing time on Tuesday, July 9, 2019 at the Polk

Township Municipal Building.

The Work will include, but will not necessarily be limited to, providing all equipment,

materials, labor, supervision, and testing services as further described in the bid documents.

All Bid Documents and details are available at no cost online at www.polktwp.com. Click on the

“Documents and Forms” tab, then look under “Misc.” for the “2019 Dixon Road DGR Project” Bid

Package.

A mandatory pre-bid meeting will be held at 10:00 AM. on Friday, June 21, 2019 at the Polk

Township Municipal Building. Hard copy bid packages will be available at this meeting upon

request.

Each proposal shall be accompanied by a Bid Bond in the required form, certified check, bank

cashier’s check, or other security acceptable to the Owner in the amount of 10% of the total Bid.

Bids will be effective for 60 calendar days from the Bid opening date except as permitted by law,

and may not be withdrawn during this period. Bidders must Bid on all items listed on the Bid

Form. The successful Bidder shall be required to furnish performance and payment bonds in the

amount of 100% of the Contract Price.

This project is subject to the Pennsylvania Prevailing Wage Act. Proof of prevailing wage must be

furnished to the township when the job is complete.

This Project is subject to the Federal Occupational Safety & Health Act of 1970 (OSHA)

conditions.

This Project is subject to Pennsylvania Act 287 of 1974, as amended by Act 172 of 1986, as

amended by Act 38 of 1991, as amended by Act 187 of 1996.

This Project is subject to the Public Works Employment Verification Act. This Contract is subject

to Pennsylvania Human Relations Act 222 conditions.

This Contract is subject to the non-discrimination in Employment/Contract Compliance

Regulations Conditions.

Polk Township reserves the right at its option to waive any informalities, irregularities, defects,

errors or omissions in any or all of Bids and to accept or reject any or all parts of the Bids

which in its judgment is in the best interest of the Polk Township.

Annie Chamberlin

Secretary

http://www.polktwp.com/

A. DEPOSIT OF PROPOSALS.

All sealed envelopes containing Bid proposals shall be clearly marked “2019 Dixon Road DGR Proposal for Letting of July 9, 2019.”

Sealed Proposals will be received on or before 4:00 PM, July 9, 2019.

Bids will be opened and read at approximately 7:30 PM, July 9, 2019.

Polk Township, Jefferson County, PA

MUNICIPALITY (NAME & TYPE)

Annie Chamberlin (814-328-2970)

SECRETARY

11382 Richardsville Rd

Brookville, PA 15825

ADDRESS

1. The contractor proposes to furnish and deliver all materials and to do and perform all work on the following

project as more specifically set forth in the Schedule of Prices (Attachment), in accordance with drawings and specifications on file at the Polk Township Municipal Building as well as the supplements and special requirements contained herein and/or attached hereto.

2. If designated as the successful bidder, the contractor will begin work on the date specified in the notice to

proceed, or as otherwise provided in the special requirements, and will complete all work on or before September 27, 2019. If all work is not completed on time, liquidated damages will be assessed at the rate of $250.00 per additional calendar day.

3. Accompanying this proposal is a certified check or bid bond in the amount of 10% of the Bid Amount made payable to the municipality as a proposal guarantee which, it is understood, will be forfeited in case the contractor fails to comply with the requirements of the proposal.

B. PROPOSAL OF:

NAME / ADDRESS OF CONTRACTOR

CONTRACTOR’S CERTIFICATION

It is hereby certified as follows:

1. The only person(s) interested in this proposal as principal(s) is (are):

2. None of the above persons are employees of the municipality.

3. This proposal is made without collusion with any other person, firm or corporation.

4. All plans and specifications referred to above and the site of the work have been examined by the contractor. The contractor understands that the quantities indicated herein are approximate and are subject to change as may be required; and that all work is payable on the basis of the unit price listed on the Schedule of Prices (Attachment 1).

MS-944 (7-09)

PROPOSAL & CONTRACT (WHEN EXECUTED)

Instructions on Page 4

(THIS PROPOSAL INCLUDES INSTRUCTIONS TO BIDDERS)

5. The contractor will comply with all requirements of the laws and implementing regulations of the Commonwealth of Pennsylvania and the United States relating to human relations, equal opportunity and non-discrimination in employment, and will pay to workmen employed in the performance of the contract the wages to which they may be entitled.

6. The contractor will provide the municipality with a performance bond, conditioned upon the faithful performance of the contract in accordance with the plans, specifications and conditions thereof, and a payment bond conditioned on the prompt payment of all material furnished and labor supplied or performed in the prosecution of the work.

7. Bidder acknowledges that this bid is for a public works contract and bidder is therefore subject to the provisions, duties, obligations, and penalties of the Public Works Employment Verification Act, 43 P.S. 167.1-167.11, which is incorporated herein by reference.

CONTRACTOR

BY:: DATE:

TITLE:

WITNESSED OR ATTESTED BY: DATE:

TITLE:

TO BE EXECUTED ONLY IN THE EVENT THE ABOVE PROPOSAL IS ACCEPTED

ACCEPTED ON:

DATE

POLK TOWNSHIP

MUNICIPALITY

BY: TITLE:

BY: : TITLE:

BY: :

TITLE:

ATTESTED BY: : TITLE:

SEAL

SEAL

ATTACHMENT 1 TO MS – 944 (PROPOSAL AND CONTRACT MS – 944)

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County: Jefferson Municipality: Polk Township Project

Number: 486-2019

LOCATION OF WORK: Dixon Road T-486 in Polk Township, Jefferson County, PA, as shown on the map included herein.

DESCRIPTION OF WORK: Will install all pipes and furnish all headwalls and endwalls. #1 stone and #R5 stone to be furnished by the contractor. Contractor to supply approximately 178 loads of native shale or sandstone. All stone must be approved by the township or conservation district. Native shale or sandstone will be rolled by a bulldozer. Driveway pipe must be removed and raised, and a driveway must be built up. All pipes and inlet boxes furnished by the township.

SCHEDULE OF PRICES Item

1 No.

Approximate

2 Quantities

Unit

3

*Description

4 Unit Price

5

Total

6

1. 1 LS Shale/sandstone base (22’ x 1,085’ x avg. 2’)

2. 1 LS 1 headwall and 2 endwalls

3. 1 LS Revegetation

TOTAL AMOUNT OF BID

SPECIAL PROVISIONS TO CONTRACT MS-944 (Attachment 1-A) CONTAINS IMPORTANT INFORMATION FOR THE CONTRACTOR

The Prime Contractor and subcontractors must comply with all of the following provisions:

General

• A mandatory pre-bid meeting is scheduled for 10:00 AM Thursday, June 21, 2019 at the Polk Township Municipal Building.

• Each bid must be accompanied by bid security in the form of a certified check, bank cashier’s check or bid bond in required form, amounting to (10%) ten percent of the total base bid.

• For project specific questions, bidders should contact Polk Township’s roadmaster, Neal Davis at 814-328-2996.

• All work to be completed in accordance with the attached Technical Bulletins published by the PennState Center for Dirt and Gravel Road Studies.

• A pre-construction meeting will be mandatory and the Contractor’s and any Sub- Contractor’s on site foreman must attend. The contractor will schedule this meeting with Polk Township and the Jefferson County Conservation District at least 5 calendar days before the start of the project.

• Work schedule must be coordinated with Polk Township and work must be completed on or before September 27, 2019. If all work is not completed on time, Liquidated damages will be assessed at the rate of $250.00 per additional calendar day.

• Polk Township and Jefferson County Conservation District will inspect the project. • Incidental preparation and clean up required. • Contractor is responsible for defects that occur within one year of applications. • The successful bidder must provide a 100% Performance Bond and a 100% Payment Bond

within 10 days of the award of the contract. • Construction projects, where the estimated cost of the total project exceeds $25,000, are

subject to the provisions of the Pennsylvania Prevailing Wage Act 442 and amended by Act 89 of 2013. Proof of prevailing wage must be furnished to the township when the job is complete.

• The Municipality intends to award the contract to one bidder, the Municipality reserves the right to accept or reject any and or all proposals or portions thereof, and to delete projects and or portions of the project depending on budgetary constraints

• Final Completion Certificate & Notice of Completion required. • Contractor, notify all residents of pending work to be performed.

Insurance Requirements

The awarded contractor shall purchase and maintain, at its expense, during the term of this contract and any renewals or extensions thereof, insurance issued by companies acceptable to Polk Township. Polk Township MUST be named as an additional insured on the policy.

My signature signifies that I have read and understand the above special provisions to this contract, and by being authorized by this company to act as their authorized representative, and on their behalf hereby agree to adhere to any and all of the provisions pertaining to this contract.

CONTRACTOR’S REPRESENTATIVE DATE POLK TOWNSHIP REPRESENTATIVE DATE

COMPANY Polk Township

PENAL SUM FORM

BID BOND

BIDDER (Name and Address):

SURETY (Name and Address of Principal Place of Business):

OWNER (Name and Address):

BID

BID DUE DATE:

PROJECT (Brief Description Including Location):

BOND BOND NUMBER:

DATE (Not later than Bid due date):

PENAL SUM:

(Words) (Figures)

IN WITNESS WHEREOF, Surety and Bidder, intending to be legally bound hereby, subject to the terms printed on

the reverse side hereof, do each cause this Bid Bond to be duly executed on its behalf by its authorized officer, agent,

or representative.

BIDDER SURETY

(Seal) (Seal) Bidder's Name and Corporate Seal

Surety's Name and Corporate Seal

By: By:

Signature and Title Signature and Title

(Attach Power of Attorney)

Attest: Attest:

Signature and Title Signature and Title

Note:

(1)

Above addresses are to be used for giving required notice.

(2) Any singular reference to Bidder, Surety, OWNER or other party shall be considered plural where

applicable.

EJCDC NO. 1910-28-C (1996 Edition) 00410-1

PENAL SUM FORM

1. Bidder and Surety, jointly and severally, bind

themselves, their heirs, executors, administrators,

successors and assigns to pay to OWNER upon default

of Bidder the penal sum set forth on the face of this Bond.

2. Default of Bidder shall occur upon the failure of

Bidder to deliver within the time required by the Bidding

Documents (or any extension thereof agreed to in writing

by OWNER) the executed Agreement required by the

Bidding Documents and any performance and payment

Bonds required by the Bidding Documents.

3. This obligation shall be null and void if:

3.1. OWNER accepts Bidder's Bid and Bidder

delivers within the time required by the Bidding


by OWNER) the executed Agreement required by the

Bidding Documents and any performance and payment

Bonds required by the Bidding Documents, or 3.2. All Bids are rejected by OWNER, or

3.3. OWNER fails to issue a Notice of Award to

Bidder within the time specified in the Bidding


by Bidder and, if applicable, consented to by Surety when

required by paragraph 5 hereof).

4. Payment under this Bond will be due and payable

upon default by Bidder and within 30 calendar days after

receipt by Bidder and Surety of written notice of default

from OWNER, which notice will be given with

reasonable promptness, identifying this Bond and the

Project and including a statement of the amount due.

5. Surety waives notice of and any and all defenses based

on or arising out of any time extension to issue Notice

of Award agreed to in writing by OWNER and Bidder,

provided that the total time for issuing Notice of Award

including extensions shall not in the aggregate exceed 120

days from Bid due date without Surety's written consent.

6. No suit or action shall be commenced under this

Bond prior to 30 calendar days after the notice of default

required in paragraph 4 above is received by Bidder and

Surety and in no case later than one year after Bid due

date.

7. Any suit or action under this Bond shall be

commenced only in a court of competent jurisdiction

located in the state in which the Project is located.

8. Notices required hereunder shall be in writing and

sent to Bidder and Surety at their respective addresses

shown on the face of this Bond. Such notices may be

sent by personal delivery, commercial courier or by

United States Registered or Certified Mail, return receipt

requested, postage pre-paid, and shall be deemed to be

effective upon receipt by the party concerned.

9. Surety shall cause to be attached to this Bond a current

and effective Power or Attorney evidencing the authority

of the officer, agent or representative who executed this

Bond on behalf of Surety to execute, seal and deliver such

Bond and bind the Surety thereby.

10. This Bond is intended to conform to all applicable

statutory requirements. Any applicable requirement of

any applicable statute that has been omitted from this

Bond shall be deemed to be included herein as if set

forth at length. If any provision of this Bond conflicts

with any applicable statute, then the provision of said

statute shall govern and the remainder of this Bond that

is not in conflict therewith shall continue in full force

and effect.

11. The term "Bid" as used herein includes a Bid, offer

or proposal as applicable.

: (DATE)

EJCDC NO. 1910-28-C (1996 Edition) 00410-2

D-7126 (7-09)

ANTI-COLLUSION AFFIDAVIT

County of:

(if Applicable)

The undersigned deponent deposes and says that he is the of the

Company; that he is authorized to make this affidavit on behalf of said company in compliance

with Section 102.06(e) of Department Specifications, Publication 408, as amended and that the

said company has not, either directly or indirectly, entered into any agreement, participated in

any collusion, or otherwise taken any action in restraint of free competitive bidding in connection

with such contract.

(CONTRACTOR)

BY:

Sworn to and subscribed before me the undersigned Notary Public this day of , 20 .

NOTARY PUBLIC

My commission expires:

County: Jefferson

Municipality: Polk Township

Project Number: 554-2017

State of: Fed. Project No.:

Raising the Road Profile

6/2014

The publishers of this publication gratefully acknowledge the financial support of the PA State Conservation Commission. For additional information or assistance, contact: Center for Dirt & Gravel Roads Studies, Penn State University, 215 Transportation Research Building, University Park, PA 16802 (Toll-Free Phone: 1-866-668-6683, Fax: 814-863-6787, Email: [email protected]). Additional copies available on our website at: www.dirtandgravelroads.org. © 2014 All rights reserved

WHY RAISE THE ROAD PROFILE?

Routine road maintenance practices (surface grading, snow removal, shoulder cutting, ditch cleaning, etc.)

combined with the wear and tear of traffic and natural erosive forces have the cumulative effect of lowering the

elevation of the road in relation to the surrounding terrain. As the road profile drops, or becomes entrenched,

water draining to the road is trapped and concentrated in parallel ditches and the road begins to function as a

channel for downslope water flow (see Photo 1).

Entrenched road profiles make installation of crosspipes, turnouts and other drainage features to shed water

form the road increasingly challenging. Raising the road can eliminate the persistent maintenance difficulties

associated with an entrenched road.

Because the elevation of the road is lower than the surrounding terrain, drainage on the road is trapped. As this drainage flows downhill, its velocity increases. Fast-moving water washes road material away and means more frequent road maintenance.

TYPICAL REQUIREMENTS

• low-cost fill material that is nearby

• commonly used fill materials: native shale,

rock or mining spoil, bank run gravel,

concrete or demolition waste, tire shreds,

ground glass, spent sand from

sandblasting, coal combustion waste

• hauling of material to the site

• grader or bulldozer to place and shape fill material

• geo-textile fabric to strengthen the road base (not

always necessary)

• compaction equipment to compact the fill in 8” to

12” lifts

• compaction is critical—use a large static

roller, vibratory roller, or sheep’s foot roller

to thoroughly compact each lift of fill

• durable road surfacing material to cap the newly

filled road surface

IMPORTANT CONSIDERATIONS

Select fill material carefully. Some materials may need permits or require special handling.

When adding fill material, it is ideal to raise the road enough that drainage is restored to a natural condition.

In other words, ditch flow is eliminated from either the downslope side of the road or both sides of the road

(depending on topography) allowing road drainage to sheet flow off the road into the surrounding

landscape.

Raising the road profile coincides well with installation of underdrain. Please see the Underdrain

Informational Bulletin and the Installing Perforated Underdrain Technical Bulletin for more information.

Seek low-cost fill material that is nearby.

Consider how to haul material to the site.

Photo 1

The Pennsylvania State University is committed to the policy that all persons shall have equal access to programs, facilities, admission, and employment without regard to personal characteristics not related to

ability, performance, or qualifications as determined by University policy or by state or federal authorities. It is the policy of the University to maintain an academic and work environment free of discrimination,

including harassment. The Pennsylvania State University prohibits discrimination and harassment against any person because of age, ancestry, color, disability or handicap, national origin, race, religious creed,

sex, sexual orientation, gender identity, or veteran status. Discrimination or harassment against faculty, staff, or students will not be tolerated at The Pennsylvania State University. Direct all inquiries regarding the

nondiscrimination policy to the Affirmative Action Director, The Pennsylvania State University, 328 Boucke Building, University Park, PA 16802-5901; Tel 814-865-4700/V, 814-863-1150/TTY. U.Ed #RES-01-50.

CONSTRUCTION SEQUENCE

BEFORE: An entrenched road traps road drainage on the road in

parallel ditches. This is a situation that requires constant

maintenance. Raising the road eliminates the persistent

maintenance associated with a road that is lower than the

surrounding terrain.

Cross-section #1:

DURING: Prep the existing road base with proper crown before

adding fill material. Place fill material in the road profile in 8” to

12” lifts. Each lift of material should be placed with proper crown

of ½” to ¾” per foot. Compact each lift of material to ensure a

solid road base. Geo-textile fabric can be used in between lifts of

material to add strength to the road base. Whenever possible,

add enough fill material to raise the elevation of the road to

restore natural drainage patterns.

Cross-section #2: The existing road base is re-shaped with

proper crown. The first lift of fill material is placed, crowned and

compacted.

Cross-section #3: The second lift of fill material is laid on top of

the first lift, crowned and compacted.

AFTER: Place aggregate on the fill material. Because the fill

has been crowned or shaped properly, the aggregate will retain

its shape and facilitate sheet flow off the road.

Cross-section #4

before

during

after

Filling the road: before, during, and after. Here native shale was used to fill the road and eliminate the ditch on both sides of the road. Driving surface aggregate (DSA) was placed on top of the prepared shale surface.

sheet

flow

2nd lift of fill

1st lift of fill

ditch

flow

1st lift of fill

Photo 2

Photo 3

Photo 4

Headwalls & Endwalls

6/2014


HEADWALLS AND ENDWALLS – A wall built at a pipe opening to support the road and protect it from the erosive forces of flowing water. A wall at a pipe inlet is called a headwall. A wall at a pipe outlet is an endwall.

Walls can be made with a variety of materials including native stone (1), boulders (2), or molded plastic (3).

Photo 1

PURPOSES

Headwalls and endwalls support the road and protect the ends of

the pipe. Properly constructed headwalls and endwalls improve

pipe capacity and efficiency while reducing erosion around pipe

installations.

BENEFITS OF HEADWALLS AND ENDWALLS

• provide a low-cost, long-lasting solution to erosion problems

at pipe openings

• prevent flowing water from damaging the road structure

• provide structural support for the road and prevent crushing

of the pipe

• increase the flow capacity of pipes by reducing turbulence

and directing flow

• visually identify pipe openings and protect them from traffic

and maintenance equipment

NECESSITY FOR PROTECTION AT PIPE OPENINGS

It is necessary to protect pipe openings for several reasons:

Water is turbulent when it changes shape or direction,

increasing its erosive potential.

Water accelerates as it passes through a pipe creating the

need for armor to prevent erosion.

High flows erode unprotected areas directly causing soil

erosion, sediment pollution, and maintenance costs.

Physical support for the road may be necessary at pipe

openings, depending on road width and pipe length.

MATERIALS Headwalls and endwalls can be built with many different materials.

Several factors influence the choice of materials including local

availability, skill and time required for construction, durability, cost,

and volume and velocity of water to be handled. Materials

commonly used in Pennsylvania include*:

• native stone or boulders collected on-site

• pre-cast concrete and cast-in-place concrete

• molded plastic (Hartman Endwall System)

• modular masonry products

* Construction techniques using the materials

listed will be covered in future technical bulletins.

Photo 2

Photo 3






SHAPE

The shape of headwalls and endwalls is important to

direct water flow, to protect the road and banks from

turbulent water, and improve drainage efficiency.

At the pipe inlet, the headwall reduces

turbulence, directs flow, and maximizes

the flow capacity of the pipe during high

flows. At the outlet, the endwall prevents

erosive back eddy currents from undermining

the pipe placement and the road structure.

Pipe Outlet:

Accelerated water,

turbulent eddys.

Pipe Inlet:

Flow restriction.

Pipe

Plan or Bird’s Eye View Figure not drawn to scale

Headwalls and endwalls built in a rough

trapezoidal/parabolic shape act to collect and funnel

fast-moving water while protecting the ends of the

pipe from erosion (fig. 1).

Angle-shaped headwall Pipe Inlet: Angle-

shaped headwall

Water that must change direction to enter a pipe can be

very erosive. Erosion and sediment deposition cause

maintenance and pollution. An angle-shaped headwall

directs flow and reduces turbulence, improving pipe

capacity (fig. 2).

Plan or Bird’s Eye View Figure not drawn to scale

Pipe Outlet

Pipe

12”

15” Pipe

Road Surface

Longitudinal Section of Pipe Installation. The head- and endwalls are built 12” above the pipe to ensure proper cover, support the road, and improve pipe capacity. Figure not drawn to scale

IMPORTANT CONSIDERATIONS

Headwalls and endwalls should be built high enough to support the full depth of pipe cover recommended by

the manufacturer: 12” of cover for plastic and corrugated steel pipe 24” in diameter and smaller (Figure 3).

It is critically important to anticipate the forces of drainage water under heavy storm high flow conditions.

Drainage structures should be built to conduct massive flows and provision for safe over flow should be

provided. Headwalls and end walls built to the proper height not only improve pipe capacity during extremely

high flows but also help prevent pipe blockage, road washouts and the resulting catastrophic effects.

Figure 1

Photo 4

Figure 2

Figure 3

PIPE ELEVATION

When possible, try to outlet pipes at the elevation of the

natural ground. This will eliminate the need for long “tail

ditches” at pipe outlets that are a constant source of

maintenance and erosion. More information on pipe

elevation can be found in the “Shallow Pipe Installation”

Tech Bulletin.

PIPE LENGTH AND ANGLE

Pipes should be installed at an angle across the road

that lines up with natural drainage patterns. This has

many advantages over installing pipes straight across a

road: (Figure 1)

• reduces erosion around pipe inlet and outlet that is

caused when water “turns” to enter or exit the pipe

• pipe efficiency and flow capacity are increased when

water does not have to turn 90o to enter the inlet

• traffic loading on the pipe is decreased since only one

vehicle tire at a time is directly over the pipe

• often with longer pipes installed at an angle, it is

possible to keep pipe joints away from wheel tracks

BEDDING / FILL MATERIAL– In selecting a material for

use as bedding and fill around a crosspipe, frost action

and compaction are the two most important concerns.

When possible, the material that is excavated out of the

pipe trench will make the best fill material. If this

material has a lot of large rock in it, it will not compact

properly and new material must be imported. Keep in

mind the following when selecting a bedding material:

Imported bedding material should be as similar as

possible to existing road material. This will insure

that the entire road will react in the same way to

cycles of freeze and thaw.

A plastic crosspipe is shown during installation. Notice the pipe bedding material, endwall, and stone at outlet.

YES NO

bank erosion

bank

erosion

ditch flow

The crosspipe shown in black is improperly aligned straight across the road. The red pipe indicates a better pipe placement that will carry more water and cause less erosion.

Any bedding material needs to be slightly moist to achieve the best compaction. Compaction is crucial both

above and beside the pipe to provide proper pipe support and avoid excessive flexing.

Some common fill materials include crushed bank run gravel, shale, and PENNDOT 2RC aggregate.

OTHER CONSIDERATIONS

When raising the road profile, fill should be placed and compacted prior to pipe placement. After road fill is in

place, excavate pipe trench and proceed with installation.

Ensure that all pipes have at least a 1% fall.

All pipes should have headwalls and endwalls to reduce erosion and improve pipe functionality.

Drop-inlets (grates like on storm sewers) are not recommended for use on unpaved roads.

Crosspipe Installation

6/2014

CROSSPIPE INSTALLATION - This technical bulletin deals with techniques for proper crosspipe installation

(drainage culverts, not stream pipes). Please see related technical bulletins for general pipe information or

details of a “Shallow Pipe Installation.”


Photo 1

Figure 1

A

B

C

D

E

CROSSPIPE INSTALLATION

1) Excavate Pipe Trench: Trench should be wide enough to fit

compaction device (shown in “D”) on both sides of pipe. Trench

depth will depend on outlet elevation. Outlet pipe at natural

ground elevation whenever possible to eliminate the need for a

tail-ditch. Bottom of pipe inlet should be at the same elevation

as the ditch. If needed, use a level to insure bottom of pipe

trench has min 1% fall across entire length. (See photo A).

2) Place Pipe Bedding: Once trench is complete, place small

amount of bedding material (~3”) in bottom of trench if needed.

Use bedding to smooth trench bottom and achieve proper

slope. Some shovel and rake work is required to spread

bedding evenly. If bedding material is used to level the trench,

it should be compacted before pipe placement. Use level to

find any uneven spots and double-check slope (See photo B).

3) Place Pipe in Trench: Place and align first section of pipe in

trench. Pipe inlet should be located in the existing ditch line,

with just enough room between the pipe and the bank for a

headwall. Inlets that are to close to the road pose traffic

hazards. Inlets that are to far off the road cause unnecessary

bank erosion. Align additional pieces and secure together

using provided collars or pipe adhesive. Look under pipe to

make sure it is in constant contact with the bedding. Voids

under the pipe will cause sagging upon compaction. If desired,

headwall and endwall can be constructed at this time. Fill will

be placed against the back of the walls in next step (See photo 1 on front). Otherwise, headwall and endwall can be

constructed after pipe installation is complete.

4) Place and compact fill material around pipe: Place bedding

material around pipe until approximately 8” of material is on

each side of pipe. Pipe may need to be held in place so fill

material does not push or lift pipe (See photo C). Use a

Jumping-Jack to compact fill on both sides of pipe. Compaction

of the first layer of bedding material is crucial because it packs

material down around the base of the pipe for support (See

photo D). The importance of compaction cannot be overstated!

Unlike metal and concrete pipes which have structural strength,

plastic pipes get their strength from the material compacted

tightly around them. Be careful not to puncture pipe with the

foot of the Jumping-Jack while compacting. Continue to fill and

compact in stages, placing approximately 8” of fill before

compaction. If to much fill is placed at once, proper compaction

cannot be achieved. Continue to fill and compact over top of

pipe (See photo E). Be sure to provide adequate fill over pipe.

Adequate fill varies with pipe size and construction. Plastic

pipes up to 24” in diameter require a minimum of 12” of

compacted cover.






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